Application Type Bond 1 Part or 2 Part 1 Part Material Form Stick Substrate most porous, many non-porous substrates, Nylon, Plastics, PVC Manufacturer Bostik Chemistry Hot melt: EVA based Cure Method Hot melt Viscosity (cPs) 2,375, 3,475, 5,375, 8,750 Color Colorless, Translucent Chemical Resistance Water, Acids & Alkalies, Fats & Oils Relative Solvent Resistance Chemical Resistance: Solvents resistance Other Resistance Water resistance Density (g/cm³) 0.96 (g/cc) @ 77 Key Specifications FDA (U.S. Food & Drug Administration) and/or CFIA (Canadian Food Inspection Agency): FDA regulation 21CFR 175.105
Technical Data for Bostik 0720
- Adhesive - Bond
1 Part or 2 Part
- 1 Part or 2 Part - 1 Part
- Packaging - Food packaging
- Drug/Pharmaceutical - Food
- Other - Many open and closed-cell foams @ < 300°F
- Hot melt: EVA (Ethyl Vinyl Acetate) - EVA based
- Dispenser - low and medium temperature glue guns.
- Hotmelt - Hot melt
- Clear / Transparent - Colorless, Translucent
- FDA (U.S. Food & Drug Administration) and/or CFIA (Canadian Food Inspection Agency): 175.105 - FDA regulation 21CFR 175.105
Viscosity (cPs) 2,375, 3,475, 5,375, 8,750 Test Method Softening Point (°C) 102 Test Method Open Time (min) 0.17 to 0.50, Medium
Tensile Strength (psi) 350 Test Method
Chemical Resistance Water, Acids & Alkalies, Fats & Oils Relative Solvent Resistance Chemical Resistance: Solvents resistance Other Resistance Water resistance
Elongation (%) 500 Test Method
Specific Gravity 0.98 (gms/cc) Density (g/cm³) 0.96 (g/cc) @ 77
Shelf Life Details Can be stored 730 days in a clean dry place, in its original package at an average temperature of 25°C or below. Storage temperature should not exeed 40°C. Shelf Life Temperature (°F) 73
Best Practices for Bostik 0720
All surfaces should be clean and free of contaminants. If necessary, clean surfaces with solvent.
Apply the adhesive to the more difficult-to-bond surface. In general, hard, smooth surfaces are more difficult to bond than rough, porous surfaces.
“Open-time” varies depending on application temperature, amount of adhesive applied, type of substrate and ambient temperature conditions.
Mate the surfaces to be bonded as quickly as possible after adhesive has been applied for optimum bond strength.
Use firmest pressure practical for object being bonded. Do not move or adjust surfaces after contact has been made, as inferior bond strength will result.
Typically, a properly formed hot melt adhesive bond will achieve 50% of its strength after 1 minute, 75% after 1 hour, and 100% after 1 day.
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Softening Point Test Methods
|Softening Point||Unit Test Method|
|102°C||Ring and Ball (Herzog - ASTM E28)|
Viscosity Test Methods
|2,375 cPs||Brookfield - ASTM D3236||177°C|
|3,475 cPs||Brookfield - ASTM D3236||163°C|
|5,375 cPs||Brookfield - ASTM D3236||149°C|
|8,750 cPs||Brookfield - ASTM D3236||135°C|
Tensile Strength Test Methods
|Tensile Strength||Cure Time|
|350 psi||1,440 min|
Elongation Test Methods
|500 %||After 24 Hour Cure|